Here is the full list of all 34 Archeo: Shinar achievements.
Send a letter
3 strikes, that's the rule
Go bankrupt on Hard or Dreadful difficulty
Go bankrupt on Dreadful difficulty
Become the Curator
Garden Design
Thug life
Pay Vanessa
Restless explorer
Advise Francisco
Open 100 letters
31416
Buy a stimulant for less than 230 Pounds
Basic Tutorial
Lose your soul
The University of Chile
Cabo das Tormentas
National Detective Agency
Because what could go wrong?
To laugh or not to laugh
Lucrative Business
Win the custom game
Finish custom game on 2nd, 3rd or 4th place
Finish custom game on Dreadful difficulty on 2nd, 3rd or 4th place
Change explorers' attitude 100 times
Win custom game on Hard or Dreadful difficulty
Win custom game on Dreadful difficulty
Sharing, not Stealing
Linear A for dummies
Complete mission 4 in less than 20 rounds
Complete mission 4 in more than 20 rounds
Fail mission 5 due to the time limit
Find the tower of Babel